The power status of the server is detected on the string which is returned by the NOC-PS API. Depending on the device, the returned string can differ. If the power status of your server does not get detected correctly by the module, you can extend the default values. 

Please note the following things:

Add new power status values to the module

To extend the power values, follow this simple steps:

By making the changes in the override file, they are not reverted during a module update.

Exemplary Modification

If NOC-PS returns "serverUp" for online and "serverDown" for offline, insert the following value into the OnlineOfflineStrings.override.php file:

<?php

$OnlineStringArray[] = 'serverup';
$OfflineStringArray[] = 'serverdown';

As already mentioned, you must insert the value in lowercase.